The analysis of the chromosomal segregation errors of porcine oocytes matured in vitro.

Oocytes with incorrect number of chromosomes are shown for each group. The origin of aneuploidy (chromosome non-disjunction versus premature segregation of sister chromatids - PSSC), chromosomes contributing to aneuploidy and the result of analysis of the corresponding polar body are shown for each cell. LxCLW stands for crossbred of Landrace and Czech Large White pigs.